[CIG-SHORT] Pylith Segmentation Fault when running a dynamic rupture simulation

[Ge Li]

Hi there,

I’m using Pylith to simulate a dynamic rupture on a Cluster.

However, the program was aborted due a segmentation fault error  when 

distributing the mesh:

[0]PETSC ERROR: ------------------------------------------------------------------------

[0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range.

 

As suggested in the manual, I rerun Pylith under the debugger mode and with valgrind turned on, respectively, which 

Generated some log files. These files are attached here.

I also tried:

export OMPI_MCA_mpi_warn_on_fork=0

export OMPI_MCA_btl_openib_want_fork_support=0

But it didn’t work.

 

This error was eliminated when :
Run with a coarser mesh;
Run with a single processor.
 

Can you help me to target any potential issues that may cause this problem?

Many thanks!

 

-- 

Ge Li

Ph.D. Candidate

Department of Earth & Planetary Science, 

McGill University

3450 University Street

Montreal, QC, Canada 

H3A 0E8

ge.li2 at mail.mcgill.ca

 

 

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